<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
   
</body>
<script>
  


    var arr=[3,5,8,41,56,47];
   var arr1 = arr.sort();
   console.log(arr1);
   console.log(arr1.reverse()); 
   //reverse 对数组进行反序处理
</script>
</html>